Automobile door locking means



Feb. 20, 1934. I c DUQUAINE 1,947,761

AUTOMOBILE DOOR LOQKING MEANS Filed July 3, 1933 3 Sheets-She t 1 Inventor 61L, \Du uavkca guww u v Feb. 20, 1934. Q DUQUAINE 1,947,761

AUTOMOBILE DOOR LOCKING MEANS Filed July 3, 1935 3 Sheets-Sheet 2 Invenior Dagaa/ka flllorney 1934- c. DUQUAINE AUTOMOBILE DOOR LOCKING MEANS 3 Sheets-Sheet 3 Filed July 3, 1955 Inventbr o fluwwgu Patented Feb. 20, 1934 UNITED STATES PATENT OFFICE 2 Claim.

This invention relates to a novel single point control multiple acting lock-equipped structure especially, but not necessarily, adapted for simultaneously locking two or more automobile doors.

The general object of the invention is to provide a pair of locks of simple construction and arranged in stationary parts of the automobile or other structure, with means whereby the movement of one look by a key will actuate the other lock.

Other features will become more readily apparent from the following description and drawings.

In the drawings:

Figure 1 is an elevational view of the body of an automobile with the improved locking means installed therein.

Figure 2 is, a horizontal sectional view through the arrangement depicted in Figure 1.

Figure 3 is a transverse or vertical sectionalview taken approximately on the plane of the line 33 of Figure 1.

Figure 4 is an assembly view of an elevational and sectional type showing the mechanical coordination of parts somewhat more in detail.

Figure 5 is a view like Figure 4, showing the locking bolts projected to door locking positions.

Figure 6 is a horizontal sectional view taken approximately on the plane of the line 6-6 of Figure 4.

Figure '7 is an elevational view of one of the sliding lock bolt actuating blocks.

Figure 8 is a side view of one of the especially designed locking bolts or pins.

In the drawings, the body of the automobile, which is conventional, is distinguished by the numeral 9 and the doors are represented by the numerals 10 and 11. In the arrangement shown, there are four doors, the two'rear doors denoted by the numeral 10 and the front doors by the numeral 11. It is evident however that the invention may be adapted to a two door car.

In Figure 1, the numerals 12 designate the vertical styles in which the locking units are installed to obtain the desired double-acting results.

Referring now to Figures 4 and 5, it will be seen that there are two companion lock units,

which for the sake of convenience are difleren-- tiated by the numerals 13 and 14 respectively; These units however, are substantially the same in construction, and a description of one will suffice for both. Each unit comprises a suitably shaped and proportioned casing 15 provided with an appropriate face or cover plate 16.

Slidably. mounted for limited reciprocation in the body of the casing is a block 17 which may be conveniently denoted as a slide. The opposite .slidably in horizontal planes through guide collars 23 on the vertical edge portions of the casing.

, Obviously, as the block slides up and down, the locking bolts are projected or retracted according to the direction of movement due to the cam co-action between the cam head 21 and the inturned trackways or grooves 20.

The operating means for the slide 17 and the master -unit 14 is key-controlled. It comprises a vertical rack bar 24 secured rigidly on one side of the block as shown in Figures 4 and 5 at the left. Meshing with this is a rotatably mounted pinion 25 having a suitable keyhole 26 to accommodate the conventional key (not shown).

The sliding block 17 in the secondary unit 13 is arranged in reverse order andtravels in a reverse direction to that of the block in the primary unit 14, as is obvious from an inspection of Figures 4 and 5. The movement of the block in the latter unit 13 is attained by way of a flexible operating connection 27 extending through an appropriate protective tube or casing 28. This tubular casing is mounted in the body of the car as illustrated in Figure 3 whereby to transmit the motion fromthe primary to the secondary sliding block.

Thus each unit itself is of a double-acting type and the two units are mechanically co-ordinated to operate in unison and by mounting the units in the standards or stile 12 as shown in Figure 1,

and providing appropriate keepers in the doors direction of the arrow shown in Figure 4, thereby bringing about the unified action capable of simultaneously locking the doors.

The gist of the invention is found in the provision of primary and secondarir twin bolt looking um'ts operatively joined together for operation in unison, together with the key-actuated means for operating the slide, whether it bea 7 handle 29, rack and pinion means actuated by a key, or the flexible operating connection 2'7.

A careful consideration of the foregoing description in conjunction with the illustrative drawings will enable the reader to obtain a clear understanding of the purpose, features and advantages, the explicit construction, and the invention as hereinafter claimed.

It is to be understood that minor changes in shape, size, relative proportions and materials may be resorted to in practice without departing from the spirit of the invention or the scope of the invention as now claimed.

I claim:

1. A lock of the class described comprising a casing having an opening in one side thereof, a

wearer bolt passing through said opening, the inner end of the bolt being diagonally arranged and having an annular groove therein also diagonally arranged, a reciprocatory member located in the casing and having a recess in one face thereof extending through that side edge thereof which is adjacent the side of the casing having the hole therein, the inner wall of the recess being diagonally arranged and having a T-shaped groove therein for receiving the inner end of the bolt, and means for reciprocating said member for projecting and retracting the bolt.

2. A lock of the class described comprising a casing having an opening in each side edge thereof, with oneopening arranged adjacent the front of the casing and the other adjacent the rear 7 of the casing, a block mounted for reciprocatory motion in said casing, said block having recesses in its front and rear faces, said recesses passing through opposite side edges of the block, bolts passing through the openings in the side edges of the casing and extending into said recesses, each bolt having a sloping inner end and provided with an annular groove adjacent said end and also sloping and each recess having a sloping inner wall, the sloping wall of one recess extending in an opposite direction from the sloping wall of the other recess and each of said walls having a T-shaped groove therein for receiving the inner end of a bolt, and means for reciprocating the block.

CECIL L. DUQUAINE. 

